Fuel Consumption on Takeoff

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TankerTOAD

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Unread post21 Aug 2008, 05:52

What is the fuel consumption of a F-16 during a full afterburner takeoff?

The specific information that I am trying to confirm is the fuel burn of a B-1B during an afterburner takeoff, I have heard that it is around 250,000lbs per hour.

Thanks for the help.
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Raptor_One

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Unread post21 Aug 2008, 06:45

What F-16? In other words, what Block? Different engines = different fuel flow. Also, I assume you're talking about the approximate fuel flow numbers when the aircraft is still on the ground and in full AB, right? They'll change a bit as speed increases even on the ground, but not much.
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Mushmouth

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Unread post21 Aug 2008, 09:09

TankerTOAD wrote:What is the fuel consumption of a F-16 during a full afterburner takeoff?

The specific information that I am trying to confirm is the fuel burn of a B-1B during an afterburner takeoff, I have heard that it is around 250,000lbs per hour.

Thanks for the help.


Kinda hard to confirm a F101 GE fuel rate at max aug from a F110 GE or 100 PW. Even though the 101 and 110 have the same core, the F101 (B-1) consumes a couple of hundred lbs. more than a F110. And at full aug, the 101's have a way bigger aug and the distribution system slightly different that the 110 tje provide more fully. I'll ask a pilot for you what the average full rate is at max all on all 4 since we cannot run all 4 at aug for maintenace runs.
00-06 Shaw GE-129
06-07 Kunsan GE-100
07-11 Dyess B1B GE-102
11-12 Kunsan GE-100
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TankerTOAD

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Unread post21 Aug 2008, 12:58

Raptor_One wrote:What F-16? In other words, what Block? Different engines = different fuel flow. Also, I assume you're talking about the approximate fuel flow numbers when the aircraft is still on the ground and in full AB, right? They'll change a bit as speed increases even on the ground, but not much.


Which ever engine consumes the most fuel is the one that I'm interested in. As I said, I'm trying to find out how much the F101 of the B-1 burns so I'm trying to get a ballpark number.

-Thanks
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SnakeHandler

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Unread post21 Aug 2008, 23:57

We reliably burn about a grand for a burner takeoff in an A-G config. That gets us from a dead stop to 350KTS at 2000 feet. We bring it out of AB usually at 300KTS unless the gear hasn't finished retracting, then we'll bring it out sooner. Both the PW220 in the Block 42 and the GE110 in the Block 40 burned about the same. The most fuel flow I've ever seen on takeoff was around 36K per hour. Why are you asking?
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TankerTOAD

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Unread post22 Aug 2008, 12:44

SnakeHandler wrote:Why are you asking?

Curiosity. Just trying to confirm what I heard about the B-1 burning at a rate of one quarter million pounds per hour since it sounds so ridiculous.

Multiplying your number by 4 comes out to 144,000lbs/hr. Supposedly the augmenter on the F101 is considerably larger so it may not be out of the question for a Bone to burn close to 250,000lbs per hour.
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That_Engine_Guy

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Unread post23 Aug 2008, 03:36

I would say 250,000 would be "maximum fuel flow" on all 4 engines of a Bone. We're talking what 62.5K per motor? That's not impossible. Consider the Bone carries ~130 tons of fuel. (~35K Gallons)

I know the PW-229 can hover near 50K PPH on a "good day", during a cold crisp winter day. After all, the Fuel Flow gauge in an F-16 goes from 0 to 80K. :wink"

Consider the larger bypass ratio of the F101-GE-102 and that engine will most likely use considerable more fuel in augmentor due to airflow alone.

That is IMHO...

Keep 'em flyin' :thumb:
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JetTest

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Unread post23 Aug 2008, 04:11

I have seen the F100-PW-229 break 58k/pph at sea level static test cell.
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Mushmouth

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Unread post23 Aug 2008, 08:19

Ok Tanker, here's a rough estimate for ya. Today we ran one for a stall on one engine and a primary throttle fail on the other. At max aug, they pretty hit 55K PPH, of course with a little + or - flux or a couple of grand, individually. So somewhere between 220,000 and 240,000 is a rough estimate for you. As for fuel load, if I remember right, the max amout you are allowable per the weight and balance book is 165K lbs. and that is withouth the external weapons bay tanks.
00-06 Shaw GE-129
06-07 Kunsan GE-100
07-11 Dyess B1B GE-102
11-12 Kunsan GE-100
12-'' JBMDL CF6-50

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